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“The most powerful document search tool on the market.”
—  Wired Magazine
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fax 301-263-0781
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Instantly Search Terabytes of Text
Includes Document Filters
The dtSearch product line can instantly search terabytes of text across a desktop, network, Internet or Intranet site.
dtSearch products also serve as tools for publishing, with instant text searching, large data collections to Web sites or portable media.
Developers can embed dtSearch’s instant searching and file format support into their own applications.
dtSearch document filters support a broad range of data
Supports MS Office through current versions (Word, Excel, PowerPoint, Access, OneNote), other "Office" formats, ZIP, HTML, XML/XSL, PDF and other file types
Supports Exchange, Outlook, Thunderbird and other popular email types, including multilevel nested attachments
Spider supports public and secure, static and dynamic (ASP.NET, SharePoint, CMS, PHP, etc.) web data
APIs for SQL-type data, including BLOB data
Highlights hits in all supported data types
25+ full-text and fielded data search options
Federated searching
Special forensics search options
Advanced data classification objects
APIs for C++, Java and .NET
Native 64-bit and 32-bit versions
Developer Tutorials (I-Programmer, CodeProject, etc.)
The Smart Choice for Text Retrieval® since 1991
Desktop with Spider
Network with Spider
Publish (for portable media)
Web with Spider
Engine for Win & .NET-SDK
Engine for Linux-SDK
Engine for Android-SDK
Document Filters – included with all products, and also available for separate licensing
dtSearch Engine for Win & .NET – Add dtSearch search features and built-in data support to your application; native 64-bit and 32-bit APIs for Win & .NET (through current versions), C++, Java, SQL, etc.; .NET Spider API. 
Download Evaluations
dtSearch dtSearch Maze
dtSearch dtSearch Maze